Attachment for cotton-combing machines.



No. 672,578. Patented Apr. 23, |90I.

' H. TUNSTALL. T

ATTACHMENT FOR COTTON CUMBING MACHINES. (Application led Sept. 21, 1900.)

(No Model.) 2 Sheets-Sheet l.

i @Lwwmw #Ww No. 672,573. C Patented Apr. 23, |901.- H. TuNsTALL.

ATTACHMENT FOR COTTON COMBING MACHINES.

(Application filed Sept. 21, 1900.)

2 Sheets-Sheet 2l.

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` To 1r/ZZ whom it may concern..-

" lUNITED i STATES PATENT FFICE..

HARRY TUNSTALL, OF WESTERLY, RHODE ISLAND.

ATTACHMENT FOR COTTON-COMBING MACHINES.

SPECIFICATION forming' part 0f Letters Patent N 0. 672,578, dated April 23, 1901.

Application filed September 21,1900. Serial No. 30,659. (No model.)

` Be it 'known that I, HARRY TUNSTALL, a

e `citizen of` England, residing at Westerly", in

the county of Washington and State of Rhode Island, have invented certainnew and useful y `Improvements in Attachments for Cottoni Combing Machines, of which the following is a full andcomplete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

` This invention relates to cotton-combing machines; and the object thereof is to provide a spring weighting attachment for the leathercovered detaching-roller in machines of this class. The `motion of theleather-covered roller in cotton-combing machines is in four different directions, said roller moving for- Ward, backward,upward, and downward with every motionofthe machine, and this roller is usually weighted with` dead-weights supported by means of hooksand chains. `These weights are usually quite heavy, weighing about thirty-two pounds, and when the roller has been taken out for any purpose, which` frequently occurs in the operation of the machine, the operator ofthe machine, usually a female, has to lift these weights off and replace them, which is a very difficult and distressing operation; and it is one of the 0bjects of this invention to dispense with these weights, and the consequentnecess'ity of attaching and detaching them during the operation of the machine.

The invention is fully disclosed in the following speciflcatiomof which the accompanying drawings form a part, in which the sepa- Vrate parts of my improvement are designated by the same reference characters in each of the views, and in which- Figure l is aside elevation of my improved attachment for cotton-combing machines and showing the part of the machine with which itis connected; Fig. 2, a plan view thereof;

` and Fig. 3, a side elevation of parts of a cotton- Pivotally connected with the upper end of the support d by means of a pivot pin or bolt fis a cam g, having a downwardly and outwardly directed arm g2, and at a predetermined distance below the pivotal support of the cam g and rearwardly thereof is a stud h, on which rests the dead end of a spring-arm k, which is preferably curved upwardly atthe middle thereof, as shown at kzfand said springarm is provided at its opposite end with a bearing k3, which in practice rests on the tube h4 of the machine,in which the leather-covered roller revolves. The dead end of the springarm lr rests on the stud h, and the ycam g is operated in practice so as to apply pressure to the spring-arm la, and'this operation is performed by means of the arm g2 of said cam.

The bearing k3 at the end ot' the spring-arm k may be made of any desired material and is preferably made of material which will not wear the tube on which it bears, and my improved spring attachment makes the machine run lighter and smoother and also facilitates the operation of the nippers with which machines of this class are provided.

In Fig. 3 of the drawings I have shown some of the main parts of the machine in connection with which my improvement operates, and in this view g represents the sliver-box, through which the slivers of Wool pass, and at m and m2, respectively, I have shown the bottom and top rollers through which slivers of Wool pass after leaving the sliver-box. The main cylinder of the comber is alsoshown at m3, and mounted on the lifter-shaft b is the lever m4, which operates to raise and lower the leather-covered detaching-roller 7a4, and at 'n and n2 are shown the top and bottom detaching-rollers employed in machines of this class.

It will be understood that the attachment which is connected with the rocking or lifter shaft of the machine, which, in machines of thisclass as usually constructed, also' oper- IOO ` ates the roller and weights hereinbefore re- Y ferred to, and rocks with the shaft thus giv- Y' the cylinder of the comber.

ing it a motion to correspond with the motion of the roller, thus making it more positive in its action.

Another advantagev of my improvement co'nsists -in the fact that When the Weight is put on the rollerby my spring attachment and cam it is equal to a dead-Weight and does not vary except in one place, and that is when the leather roller is down on the segment of As the leather roller strikes the segment to bring the cotton through the levers that lift the roller and` Weights, asy these machines are usually constructed, fall atrifle lower and the shaft travels' a little farther than the roller, the roller havingstopped, and the shaft rocking a little farther takes the springrattachment with it, and the bearing los at the end of the spring-arm k `being held by the roller eX- pands the spring-arm a little more, thus putting on va littleA extra weight, which makes the roller pick up theflbers of cotton better and bring them through the front of the machine, thus `making a great saving in Waste. My improvedA spring weighting attachment also does away Withthe usual cast-iron detachinghooks, chains, links, Weights, chainpulleys, and chain-pulley shaft and makes it easiertokeep the machine in working order.

,Having fully described my invention, I claim as new and desireto secure by Letters Patentk. v

IQA spring Weighting attachment for cottojncombing machines, provided With' the usual detaching-rollers and rocking or lifting shafts, Vcomprising asu'pport or lever adapted to'be secured to a rocking or lifting shaft, an upwardly-directed armor bracket connected with said support or lever, a cam connected With saidar'mvor bracket, a spring-arm one.

end of which has a bearing vbelow said cam usual detaching-rollers and rocking or liftingV shafts, comprising a support or lever adapted to be secured to the rocking or lifting shaft,

an upwardly-directed bracket or support conne'cted with said support or lever, a cam connected with said bracket or support, and a spring-arm provided with abearing beneath said cam, said spring-arm being curved up- Wardly soas to be operated by said cam,-an`d being also provided at the end thereof opposite said cam with a bearing, which is adapted 'to rest on the tube of a detaching-vrolle'r of the machine, substantially las shown and described.

3. The combination with a cotton-combing machine provided with the usual rocking or lifting shaft, and the usual detaching-roller of a spring Weighting attachment comprising a supporter lever secured to the rocking or lifting shaft, an upwardly-directed arm or bracket connected with said'su'pport or lever, a cam connected with said support or bracket, and a spring-arm, one end "of which has4 a bearing below said cam, and the opposite end of which is adapted to bear on the detachingroller of the machine, substantially as shown and described,

In testimony that I claimjthe foregoing as my invention I have signed my name, in presence of ,the subscribing Witnesses, this 18th day of September, 1900. l l

` HARRY "TUN STALL.

l -Witnessesz i HENRY. HOLLAND,` WILLIAM HARGREAVES. 

